Bookcase

ABSTRACT

A bookcase includes a case made of wood plates or plastic plates. The case is formed with a left side plate and a right side plate, a lower side plate and a rear side plate. The lift and the right side plate respectively have a lower edge provided with a moving perforation, which forms a certain depth by making use of the thickness of the wood plate or the plastic plate of the case, respectively having an upper edge disposed with a lifting handle. Thus, a user can move the case by extending fingers into the moving perforations or lift up the case by the lifting handles and further. Two or more cases can be superposed and combined together by having the lifting handles of the lower case inserted into the moving perforations of the upper case. The bookcase of this invention is original in structure, able to be moved, lifted and superposed.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a continuation-in-part application of, and claims the priority benefit of, U.S. application Ser. No. 14/155,209 filed on Jan. 14, 2014. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to a bookcase, particularly to one including a case having a left side plate and a right side plate respectively provided with a moving perforation at a lower edge and respectively disposed with a lifting handle at an upper edge. Thus, the case can be moved from its underside by a user extending his fingers into the moving perforations, or lifted up and moved by means of the lifting handles and further, an upper case and a lower case can be superposed and inserted together by having the moving perforations of the upper case closely fitted with the lifting handles of the lower case. By so designing, the bookcase of this invention is original in structure and can be easily moved about, lifted up and down, and also can be superposed and combined together.

2. Description of the Prior Art

At present, a conventional combined article box sold on the market, as disposed in a utility model patent No. M411405, is mainly provided with an outer case and an inner case. The outer case has its underside provided with a first combination portion of matrix permutation and its topside disposed with a second combination portion corresponding to the first combination portion, and the first combination portion is round recesses while the second combination portion is round projections corresponding with the round recesses. Thus, a plurality of article boxes can be superposed and combined together by joining the first combination portion together with the second combination portions. The inner case is to be correspondingly received in an accommodating space of the outer case to close the opening of the outer case, provided with a notch for facilitating the inner case to be pulled out of the accommodating space of the outer case, and formed with an article-placing space and an article-placing 30 opening communicating with the article-placing space. Apparently, each outer case of the conventional combined article case has to be provided with the first combination portion and the second combination portions so that an upper outer case and a lower outer case can be mutually combined together, and the inner case has to be provided for storing articles therein. Thus, the conventional combined article case is high in producing cost and it is wasteful to provide an outer case and further, the conventional combined article case cannot be moved about and lifted up.

A second conventional combined article box, as disclosed in another U.S. Pat. No. 7,523,827, titled “Orthopaedic instrument sterilization case” is for sterilizing the orthopaedic instrument, and the usage of the sterilization case is different from this invention. Moreover, in paragraph 3, line 44-49 of the US patent indicated that the bail 24 shape allows the handle grips 22 to lay flat on a case top or swing upward to facilitate proper removal technique from closed container systems, so the handle grips is an “unfixed” swing structure and it causes the stacked cases has a lower binding strength. Even if the handle grips 22 can lock into the recessed carrying pockets 32, the unfixed swing structure will be easily unlock or separate by the external lateral thrust.

In view of this situation, the inventor of this invention, having accumulated much experience in designing and manufacturing various kinds of products, has been devoted to the study of the structural problem of the conventional combined article box and hence devises this invention.

SUMMARY OF THE INVENTION

The objective of this invention is to offer a bookcase that can be easily moved about and lifted up and down, and further can be freely superposed and combined together for plural layers by a user according to practical needs, able to enhance the quality of home environment and free to be used.

The bookcase in the present invention includes a case formed with a left side plate and a right side plate having their lower edges respectively provided with a moving perforation that forms a certain depth by making use of the thickness of the wood plate or the plastic plate of the case. Further, the left side plate and the right side plate of the case have their upper edges respectively disposed with a lifting handle. Thus, a user can move the case from its underside by extending his fingers into the moving perforations or lift up the case by means of the lifting handles and further, two or more cases can by superposed and combined together by having the lifting handles of an lower one of the cases inserted into the moving perforations of an upper one of the cases. The bookcase of this invention is original in structure, able to be moved, lifted and superposed.

The moving perforations in the present invention is a kind of through hole, it make a user can move the case from its underside by extending his fingers into the moving perforations, and it also can be used for a instrumentality to combine the adjacent case.

The bookcase in the present invention can be made of a plurality of wood plates or plastic plates, and it includes at least a left side plate, a right side plate and a lower side plate, the adjacent plates are connected by fastening members and forming the case.

If the bookcase in the present invention is made of plastic, all the plates can provide with a plurality of uniform or non-uniform arrangement reinforcement groove 15 to reduce the weight and the cost of the case, and improving the load of the case to let the case can be used as a seat for bearing the weight of the objects or person.

BRIEF DESCRIPTION OF INVENTION

This invention will be better understood by referring to the accompanying drawings, wherein:

FIG. 1 is an upper view of a first preferred embodiment of a bookcase in the present invention;

FIG. 2 is a cross-sectional view of the line A-A in FIG. 1;

FIG. 3 is a cross-sectional view of the line B-B in FIG. 1;

FIG. 4 is a perspective view of the first preferred embodiment of a bookcase in the present invention;

FIG. 5 is a schematic view of the first preferred embodiment of two bookcases to be superposed and combined together in the present invention;

FIG. 6 is a schematic view of the first preferred embodiment of three bookcases superposed and combined together in the present invention;

FIG. 7 is a perspective view of a second preferred embodiment of a bookcase having an opening formed at an upper side in the present invention.

FIG. 8 is an upper view of a third preferred embodiment of a bookcase in the present invention;

FIG. 9 is a cross-sectional view of the line C-C in FIG. 8;

FIG. 10 is a cross-sectional view of the line D-D in FIG. 8;

FIG. 11 is an enlarged sectional view shown in FIG. 10;

FIG. 12 is the first use case view of a third preferred embodiment of a bookcase in the present invention; and

FIG. 13 is the second use case view of a third preferred embodiment of a bookcase in the present invention;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

FIGS. 1-4 show a first preferred embodiment of a bookcase in the present invention, with the scope of this invention not limited by the shape of bookcase shown in FIGS. 1-4. Any modification made based on the basic technique related to this bookcase may also be included in the scope of this invention. A first preferred embodiment of a bookcase in the present invention, as shown in FIGS. 1-4, includes a case 1 of any shape. The case 1 can be provided with one single opening 10 or plural openings 10, and the opening 10 can be formed at the front side or the rear side of the case 1, or at the upper side of the case 1, as shown in the second preferred embodiment of FIG. 7, or in any direction of the case 1 in accordance with requirements.

Referring to FIGS. 1-4, the case 1 is formed with a left side plate 11, a right side plate 12 and a lower side plate 13, and the case 1 can be chosen to provide with a rear side plate 14 if the requirement calls for it. The place between the left side plate 11, the right side plate 12 and the lower side plate 13 is fixed by a plurality of fastening members 2, and then all the plates will form the case 1, as shown in FIG. 11. Said left side plate 11 and right side plate 12 respectively having a lower edge bored with a moving perforation 110 and 120, which is formed with a certain depth (w) by making use of the thickness of a wood plate or a plastic plate of the case 1, and the moving perforation 110, 120 can be a rectangular shape, a square shape, a triangle shape, a trapezium shape or other geometric shapes so long as the moving perforation 110, 120 enables a user's fingers to extend therein for moving the case 1. The purpose of providing the moving perforations 110, 120 is that it is comparatively safe to move the case 1 from its underside when the case 1 is impossible to be lifted.

Further, referring to FIGS. 1-4, the left side 11 and the right side 12 of the case 1 have their upper edges respectively disposed with a lifting handle 111 and 121 respectively formed with a lifting groove 112 and 122 so that a user's fingers can extend therethrough for lifting up the case 1 under a permissible condition. The shape of the lifting handles 111, 121 must match with the shape of the moving perforations 110, 120 and can be formed into a rectangular shape, a square shape or other geometric shapes so long as a user can lift the case 1 by grasping the lifting handle 111, 121.

Referring to FIGS. 5 and 6, since the left side 11 and the right side 12 of the case 1 have their lower edges respectively provided with the moving perforation 110 and 120, which respectively corresponds to the lifting handles 111 and 121 at the upper edges of the left side and the right side of the case 1; therefore, an upper case 1 a and a lower case 1 b can be mutually superposed and combined together by having the lifting handles 111 and 121 of the lower case 1 b respectively inserted into the moving perforations 110 and 120 of the upper case 1 a, and after being superposed and combined together, the two cases 1 a and 1 b can keep their connected sides flat. In the same way as mentioned above, a plurality of units of the cases 1 can be freely superposed and combined according to practical needs and if necessary, the superposed cases 1 can be disassembled any time to have a single case 1 serving as a temporary seat.

Referring to FIGS. 8-13 show a third preferred embodiment of a bookcase in the present invention, and this embodiment is derived from the foregoing first and second embodiments. The case 1 is made of plastic and it is formed with a left side plate 11, a right side plate 12 and a lower side plate 13, and the case 1 can be chosen to provide with a rear side plate 14 if the requirement calls for it, as shown in FIG. 13. The place between the left side plate 11, the right side plate 12 and the lower side plate 13 is fixed by a plurality of fastening members 2, and then all the plates will form the case 1, as shown in FIG. 11. Said left side plate 11 and right side plate 12 respectively having a lower edge bored with a moving perforation 110 and 120, which is formed with a certain depth (w) by making use of the thickness of a wood plate or a plastic plate of the case 1, and the moving perforation 110, 120 can be a rectangular shape, a square shape, a triangle shape, a trapezium shape or other geometric shapes so long as the moving perforation 110, 120 enables a user's fingers to extend therein for moving the case 1. The purpose of providing the moving perforations 110, 120 is that it is comparatively safe to move the case 1 from its underside when the case 1 is impossible to be lifted. One side of said left side plate 11, right side plate 12, lower side plate 13 and rear side plate 14 can provide with a plurality of uniform or non-uniform arrangement reinforcement groove 15 to reduce the weight and the cost of the case 1, and improving the load of the case 1 to let the case 1 can be used as a seat for bearing the weight of the objects or person.

To sum up, the bookcase of this invention has the case 1 provided with the moving perforations 110, 120 at the lower edges for a user's fingers to extend therein for moving the case 1 from its underside and further provided with the lifting handles 111, 121 at the upper edges for a user to lift the case 1. In addition, an upper case and a lower case of this invention can be superposed and combined together by having the moving perforations of the upper case respectively joined with the lifting handles of the lower case. Therefore, the bookcase of this invention is progressive and original in structure, able to be moved from the underside or lifted up by lifting handles, and also able to be superposed and combined together.

While the preferred embodiments of this invention have been described above, it will be recognized and understood that various modifications may be made therein the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention. 

What is claimed is:
 1. A bookcase at least comprising a case, said case formed with a left side plate, a right side plate and a lower side plate, said left side plate and right side plate respectively having a lower edge bored with a moving perforation, said moving perforations provided for a user's fingers to extend therein for moving said case from underside, said left side plate and right side plate of said case having their upper edges respectively disposed with a lifting handles, the shape of the lifting handles is corresponding to said moving perforation, a user able to lift said case by means of said lifting handles, two or more of said cases able to be superposed and combined together by having said lifting handles of a lower one of said cases inserted into said moving perforations of an upper one of said cases, said case able to be moved about, lifted up and down, and superposed and combined together for plural layers.
 2. The bookcase as claimed in claim 1, wherein said case is provided with a rear side plate.
 3. The bookcase as claimed in claim 1, wherein said case can be formed with one single opening or plural openings, and said opening of said case can be provided at a front side, at a rear side, or at an upper side of said case.
 4. The bookcase as claimed in claim 1, wherein said moving perforations provided at a lower edge of said left side and said right side of said case respectively from a certain depth (w) by making use of a thickness of a wood plate or a plastic plate of said case.
 5. The bookcase as claimed in claim 1, wherein said moving perforation can be formed into a rectangular shape, a square shape, a triangle shape, a trapezium shape.
 6. The bookcase as claimed in claim 1, wherein said lifting handles can be formed into a rectangular shape, a square shape, a triangle shape, a trapezium shape.
 7. The bookcase as claimed in claim 1, wherein said lifting handles respectively provided with a lifting groove.
 8. The bookcase as claimed in claim 1, wherein said case is made of plastic, one side of all plates is provide with a plurality of uniform or non-uniform arrangement reinforcement groove to reduce the weight and the cost of the case, and improving the load of the case to let the case can be used as a seat for bearing the weight of the objects or person.
 9. The bookcase as claimed in claim 2, wherein said case can be formed with one single opening or plural openings, and said opening of said case can be provided at a front side, at a rear side, or at an upper side of said case.
 10. The bookcase as claimed in claim 2, wherein said moving perforations provided at a lower edge of said left side and said right side of said case respectively from a certain depth (w) by making use of a thickness of a wood plate or a plastic plate of said case.
 11. The bookcase as claimed in claim 2, wherein said moving perforation can be formed into a rectangular shape, a square shape, a triangle shape, a trapezium shape.
 12. The bookcase as claimed in claim 2, wherein said lifting handles can be formed into a rectangular shape, a square shape, a triangle shape, a trapezium shape.
 13. The bookcase as claimed in claim 2, wherein said lifting handles respectively provided with a lifting groove.
 14. The bookcase as claimed in claim 2, wherein said case is made of plastic, one side of all plates is provide with a plurality of uniform or non-uniform arrangement reinforcement groove to reduce the weight and the cost of the case, and improving the load of the case to let the case can be used as a seat for bearing the weight of the objects or person. 